This is a Quantity of 2: Part # 64411 Blade20 1/2" Length5/8" Center HoleHeavy Duty, 3' WideThis is an Aftermarket Replacement part than can be used to replace the following part numbers:ARIENS 052929ARIENS 08866900BAD BOY 038605000DIXIE CHOPPER 30227-60DIXIE CHOPPER 30227-60VDIXON INDUSTRIES 12421DIXON INDUSTRIES 13922DIXON INDUSTRIES 13956DIXON INDUSTRIES539119840DIXON INDUSTRIES 539119871DIXON INDUSTRIES 539129747DIXON INDUSTRIES 539129775DIXON INDUSTRIES 9383T-EXM 1-613112T-EXM 103-0301-ST-EXM 613112GRAVELY 046999GRAVELY 08979600GRAVELY 08979651GRAVELY 46999GRAVELY 89796GRAVELY 8979600GRAVELY 052929GRAVELY 08866900GRAVELY 52929GRAVELY 886690HUSTLER 793794HUSTLER 794230HUSTLER 794685TORO 105-877TORO 105-877-03WHEEL HORSE 112947PLEASE NOTE:This is a heavy duty, extra wide lawnmower blade made for commercial units. It is possible, that your mower may need to have a spindle conversion done if you require a blad saddle for your blades.This is a single replacement bladeFor a 40" Deck, you would need 2 BladesFor a 60" Deck, you would need 3 Blades